# How to calculate density? Given: Mass: 20.0 grams Volume is 31.0 ML I got 620g/mL. I want to know if this was right.

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Expert Answers

electreto05 | Certified Educator

The density of a body is defined as the ratio of the mass m, and the volume V occupied by the body.

ρ = m/V

ρ → Density

m → mass of the body.

V → Volume of the body.

In this case we have a density:

ρ = 20.0 g/31.0 ml = 0.645 g/ml

It means you should check your calculations. Maybe the equation used is not correct.

Student Comments

thecmsiansonalagarwalrocks | Student

Density=Mass/Volume

Given mass=20.0 g)

Given volume=31.0ml

Therefore,density=20.0/31.0 g/ml

=0.6451629

=0.645(approx round off)

HOPE IT HELPS!!